Want to know which airline carries the most passengers in a year? See our top 10 largest airlines in passenger traffic based on 2010 statistics. The busiest airline is the Delta Air Lines in United States with 162,614,714 passengers in year 2010.

Looking for flight routes of American Airlines?
Use our search engine on the airline route database which contrains
over 58,000 airline routes with airline names, departing airport, arriving airport,
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Want to know which air route is the busiest in the world? See our top 50 air routes with most seats in the world. The #1 air route with most seats between Tokyo International Airport and Sapporo New Chitose Airport in Japan with 1,253,220 seats per month.